reorganize the supported card table.  We don't need the enet_vendor or enet_mcast fields, so remove them.  Sort.  Eliminate now duplicate entries.
reorganize the supported card table.  We don't need the enet_vendor or
enet_mcast fields, so remove them.  Sort.  Eliminate now duplicate
entries.

This reorg saves about 500 bytes in the binary.  I've tested this only
with a couple of cards, so please let me know if I've broken anything.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase